Malicious PDF — malware analysis report

Static analysis result for SHA-256 4879e9a7a3704743…

MALICIOUS

PDF

92.5 KB Created: 2021-03-25 16:07:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 708d743a39c7f6cecec0725f1d704f45 SHA-1: 070a2084a66aa10c9463cfba666d0e47c41c61ae SHA-256: 4879e9a7a3704743ec888a19323c730a628dc7bebd4f7decf92abd0803aeeb63
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/strik?utm_term=baldur%2527s+gate+dark+alliance+ps4+release+date PDF link annotation
    • http://hugertely.xyz/50354789054qzwga.pdfIn PDF document text
    • http://aires.fun/tojabijodosuh5u29.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/guitar_songs_everyone_should_know.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/gigufomulanabokam.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/yamaha_ef3000iseb_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7a3ad77-fc3f-4002-92dd-81548d26648c/84883447697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4e1a681-9d64-415e-a903-bdd5f238a4bc/how_much_a_chick_fil_a_operator_make.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/81254439097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ec3698d-d41e-457c-bdab-1cb3246dff84/cuantos_centimetros_son_un_metro_en_escala_1_500.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/86651463968.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/apa_format_references_example_website.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/glencoe_mcgraw_hill_geometry_textbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c0efbc2-0f2c-4940-b578-80d5bd07dec0/fishman_aura_dreadnought_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/975febeb-ccdb-41ab-b3cb-00390392e51e/the_postman_always_rings_twice_full_movie_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/jquery_ajax_submit_form_get_response.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf5e4d86-7ab2-4228-a661-6d36f8a2790a/11723608100.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/wufotijiletemut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fd2553b-d483-477d-81d0-f013f8e17fc2/2006_ktm_990_superduke_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/promethean_interactive_whiteboard_price.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/50738761149.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d11e880-a825-4d06-86dc-17f6b7f82d11/how_much_do_interior_designers_make_a_month_in_california.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000129c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129C6 5476 bytes
SHA-256: bdc11da97e769b5b5b7d6d6f510b7f7180a33b2dc9793c0895c25f3d0eedd244
font_01_sfnt_off00013c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C8B 11260 bytes
SHA-256: 48d742789da6cc3e04d4e29faa44dea6fdb935c8b5620a524339d279967a003f